Is it possible to make reflections in (UP)BGE?
Information
Both UPBGE 0.2x and 0.3x both have internal, real-time reflections.
You can get the exact same result in BGE but you'll need to use an external shader script.
Blend File (in a 0.2x release)
https://blend-exchange.com/b/XjnaWgkE
Screenshot (in 0.2x)